Family name Klayrin (Klayrin 
) , all over the world, is an extremely rare last name. The cognomen Klayrin is habitual in Honduras, where it is a very rare surname, Thailand, where it is an extremely rare surname, and Venezuela. Much less frequently, Klayrin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klayrin | Thailand, Honduras, Venezuela |